Device for holding circular saws



(No Model.) 2 Shets-Sheet 1. J. PRICKETT.

DEVICE FOR HOLDING GIRGULAR SAWS.

No. 332,164. Patented Dec. 8, 1885.

WITNESSES IJV VE-N TOR g) 5 fo skww v I 11129 Attorneys.

(No Model.) 2 Sheets-Sheet 2.

J. PRIGKETT.

I DEVICE FOR HOLDING CIRCULAR SAWS. No. 332,164. Patented Dec. 8, 1885.

'III 110 IJV'VEJV'TOR I (I l/ I a a I a E Zzs .dttorneys.

N4 PEYERS PhoimLilhognph-r. wuhinnm. .6.

UNITED STATES PATENT OFFICE.

JOSHUA PRIOKETT, OF MARINETTE, l /VISOONSI N.

DEVICE FOR HOLDING CIRCULAR SAWS.

SPECIFICATION forming part of Letters Patent No.332,l64.-, datedDecember 8,1885.

Application filed September 28, 1885. Serial No. 178, 400. (No model.)

To all whom, it may concern:

Be it known that I, JOSHUA PRIOKETT, a citizen of the United States,residing at Mari- ,nette, in the county of Marinette and State ofWisconsin, have invented a new and useful Improvement in Machines forHolding Gircular Saws, of which the following is aspecification,reference being had to the accompanying drawings.

My invention has relation to a machine for holding circular saws whilebeing hammered on an anvil; and the novelty consists in theconstruction, combination, and arrangement of parts, substantially ashereinafter fully set forth, andspecifically pointed outin the claims.

The object of my invention is to provide a machine for holdingsaws,which can be easily and conveniently operated to hold the saw whichit carries at any angle to the anvil on which it is to rest, to beoperated on by the hammer in the hands of the workman, which can berevolved in the arc of a circle to suit various requirements, which canbe adjusted vertically to accommodate anvils of varying heights, andalso adjusted laterally or sidewise to bring the outer and inner edgesof the saw to bear or rest on the anvil, to provide means which shallprovide a support for the outer edges of thesaw while the inner portionsthereof are resting on the anvil and being manipulated by hand, andwhich can be adj usted vertically and laterally independently of themechanism for supporting the saw and a further object of my invention isto combine simplicity and strength of construction with thorougheffectiveness of operation and ease of manipulation in adjustingthevarious parts of the machine to suit various requirements.

I have illustrated an embodiment of my invention in the accompanyingdrawings, in which Figure 1 is a side elevation of a sawholding machineconstructed in accordance with my invention. Fig. 2 is a plan View. Fig.3 is a rear elevation. Fig. 4 is an enlarged detail sectional view ofthe crank-arm-carrying sleeve and its adjusting devices, and Fig. 5 is adetail sectional view of one form of de vice for adjusting thecarrying-sleeve. Fig. 6 is a modification of the sleeve adjustingdevice.

Like letters of reference denote corresponding parts in all the figuresof the drawings, referring to which- A designates a base on which ismounted a standard or supporting upright, A, preferably cast integralwith the said base, and having a screw-threaded socket, a, at its upperend for the reception of the adjusting screw of the saw-carrying arm.

0 designates a tubular sleeve, fitted over the outer vertical face ofthe standard A and free to rotate around and slide vertically thereon,for a purpose which will more fully presently appear, the upper end ofsaid sleeve being connected to or secured on an adj usting-screw, D,working in the threaded socket a of the standard, and havingahand-wheel, D, for ts convenient manipulation, whereby when said screwis adjusted up or down it will carry with it the sleeve and its attacheddevices, and thus accommodate them to anvils of different elevations.

E designatesajhollow bearing or sleeve arranged at the upper end of thesleeve 0 and the standard A, and having a perforated lug, 6, throughwhich passes a pin, E, to suspend said sleeve or hollow bearing from thesleeve 0 and permit the same to have a vert cal oscillating movement,said sleeve E being arranged at one side of the sleeve 0, as shown.

E designates a curved arm or bracket formed or cast integral with thesleeve E and the supporting-lug E, and having a curved slot, 6, throughwhich pass ad usting-screws F, that take into threaded seats or sockets1n the tubular sleeve 0, and serve to hold the curved arm E and; thehollow bearing or sleeve E to any desired adjustment ina vertical plane,said sleeve or bearing E beingfree to oscillate vertically in itssuspending p n or pivot E, and held in position by the ad usting-screwsworking through the slot in the curved arm E, as described.

G designates the saw-supporting arm or shaft normally held in ahorizontal positlon at the upper end of the standard A and tubularsleeve 0, one end of said shaft having a crankarm, f, which extendsthrough and bears in the hollow bearing or sleeve E, and is free torotate therein in a complete circle or in the are of a circle, saidcrank-armf being held in the sleeve E by a transverse pin, f, passingthrough the outer end thereof, projecting beyond the sleeve E andbearing on the outer vertical face thereof. On the outer end of thecrank shaft or arm G the saw to be operated on is mounted, and I willnow proceed to describe the particular means which I employ todetachably connect said saw to the arm.

H designates a shaft or arbor having a threaded portion, h,which screwsor works in a threaded socket in the outer. end of the crank-arm G forsupporting the saw, said shaft also being provided with a cylindricalplain portion, h, separated from the threadedportion by an abutment orcollar, h, an outer reduced end, 7?, which is exteriorly threaded,for apurpose presently described. The extreme outer ends of said shaft aresquared, as at h*, to provide convenient means for adjusting the shaftby a wrench or other suitable device.

I designates a roller which has a sleeve, t, and which fits over theplane portion 71/ of the shaft II, and is held in place by the abutmenth and a nut, P, which is preferably of cylindrical form and works ortakes into the thread of the reduced portion h of said shaft or arbor H,and bears against the outer vertical face of the sleeve 1', and thusprevents its displacement, while at the same time said sleevet' andcollar I are free to rotate on the plane portion h. The outer end of thesleeve 1; is provided with screw-threads on its outer face for a portionof its length, as at i and the portion thereof adjacent the collar I isleft plane'or straight, as at i for the reception of the arborhole ofthe circular saw which fits thereon,and is held in place by a collar, J,which has an interior screw-threaded portion that takes on the outerthreaded end of the sleeve *5, said collar J sliding freely over the nut6 that holds said sleeve in place.

It will be observed that the crank-arm G is free to rotate in itsbearing in the sleeve E,to cause the outer end, on which is mounted thesaw to be operated on, to describe a complete circle, or to move in thearc of a circle,

thus presenting the saw at any required:

angle to the anvil for hammering out inequalities in the surfacesthereof, and it will be further observed that the saw is detachably androtatively mounted on the sleeve of the collar I, so that all the facesthereof can be brought under the hammer and on the anvil for operation.

To detach the saw it is only necessary to disengage the nut or collar Jand slide the same from engagement with the sleeve i of the collar I.Aspace is left between said collars to permit inequalities in thesurfaces of said saw near the arbor-hole thereof to be readily detectedand subjected to the action of the hammer in the hands of the workman.The shaft or arbor H is detachably secured to the crank-arm and can bereadily removed in case of breakage and can be adjusted, the lower endbeing threaded.

K designates a collar loosely fitted over and I free to slide laterallyor vertically on the tubular sleeve 0, and carrying an adjusting-screw,

k, bearing against the outer vertical face of said sleeve 0 to hold thesaid collar at any desired adjustment on said sleeve 0.

L designates a collar, also loosely fitted over and free to slide on thesleeve 0, and arranged above and resting on the collar K, and sliding ormoving therewith when it is adjusted, said collar L having a bearing orsleeve, Z, cast therewith and arranged at right angles thereto in ahorizontal plane to receive a shaft or arm, M, which passes therethroughand is held in position therein by an adjusting bolt or screw, Z. Theshaft M is thus free to be adjusted back and forth in said sleeve orbearing Z to project at different lengths, and is arranged below theplane and out of a vertical line of the saw-supporting arm or shaft, andcarries a vertically adjustable rotating supporting device for the outeredge or periphery of the saw blade, the'particular construction of whichI will now proceed to de- Scribe.

N designates a vertical shaft having a hand wheel or lever, n, rigidlysecured thereon for its convenient manipulation, a lower screwthreadedend, n,which works in a correspondingly-threaded socket, 14?, formed inthe outer end of the shaft M, and an upper reduced end or pintle, M,which provides a bearing for a hollow socket-piece, 0, adapted to fitsaid pintle, and rigidly secured to a horizontal crossbar, 0', havingvertical standards 0 at its outer end, in which are secured brackets 12at their upper ends, and carrying friction rolls or wheels P,which aremounted on pins or shafts bearing in said brackets, and are free torotate thereon and bear against the lower face of the saw mounted in thecrank-arm G.

It will be observed from the foregoing description, taken in connectionwith the drawings, that the shaft M is adjustable vertically when thesleeve 0 is adjusted, that it is adjustable independently of said sleeve0 when the collar K is adjusted, that it is free to move around thestandard and sleeve, or, in other words, to rotate in a horizontal planearound said standard, and that it can be adjusted 1aterally in and outof the sleeve Z to bring the friction-rollers P nearer the outer edge orperiphery of the saw, and that the shaft N is capable of adj ustmentvertically, and the crossbar 0 is free to rotate in a, horizontal planethereon.

The operation of my invention is obvious.

from the foregoing description, taken in connection with the drawings.

The saw is secured on the sleeve zof the collar I, and the collarJ isfitted on said sleeve to prevent the saw from displacement. quired, thesleeve 0 is adjusted so that the saw will be onthe plane of the anvil,and the supporting device N O P and shaft M arcadjusted so that the sawis supported at its periphery or outer edge when the device is ready foruse. The inequalities in the saw-surface If reare successively broughtonto the anvil (to be hammered) by means of the several adjustments ofthe crank-arm, and when one surface of the saw has been finished it isturned over by revolving the crank-arm or causing the outer end thereofto describe a complete circle or revolving said shaft in its bearing inthe tubular bearing or sleeve E, which is also capable of adj ustment,as described hereinbefore, to enable the saw to be presented at varyingangles to the anvil.

Various slight changes in the form and proportions of parts and detailsof construction may be made without departing from the principle orsacrificing the advantages of my invention, the essential features ofwhich have been fully pointed out and will be readily understood fromthe foregoing description, taken in connection with'the drawings.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1. In a machine of the class described, the combination of a fixedstandard, A, a sleeve, 0, mounted thereon, and a saw-supporting arm, G,mounted in a bearing secured to the sleeve, and adapted to be rotated ina vertical plane to present the saw at different angles to an anvil,substantially as described.

2. In a machine of the class described, the combination of a fixedstandard, A, a sleeve, C, mounted thereon, and a saw-supporting arm, G,rotatably mounted in a tubular bearing adjustably secured to the sleeve,substantially as described.

3. In a machine of the class described, the combination, with a fixedstandard, A, a vertically-adjustable sleeve, 0, mounted thereon, atubular bearing, E, pivoted to the sleeve, and a saw-supporting arm, G,rotatably mounted in said tubular bearing, substantially as described.

4. In a machine of the class described, the combination of a standard,A, a verticallyadjustable sleeve, 0, mounted thereon, asupporting-sleeve, E, pivotally connected to said adjustable sleeve, anda saw-supporting arm, G, mounted and free to rotate in saidsupporting-sleeve, substantially as described.

5. In a machine of the class described, the combination of a fixedstandard, A, a sleeve, 0, mounted thereon, a bearing-sleeve, E,pivotally and adjustably connected to said sleeve 0, and asaw-supporting arm journaled in said pivoted sleeve E and free to rotatetherein, substantially as described.

6. In a machine of the class described, the combination of a standard, avertieallyadjust able sleeve mounted thereon, a hollow bearing or sleevepivotally and adj ustably connected to said adjustable sleeve, and asaw-supporting shaft or arm mounted in said pivoted sleeve or hearingand adapted to be rotated in a Vertical plane therein, substantially asdescribed.

7. The combination of a fixed standard, a vertically-adj ustable sleevethereon, a bearing pivotally connected to the sleeve, a saw supportingcrank-arm rotatably mounted in the bearing, and devices for detachablyconnecting the saw to the supporting-arm, substantially as described.

8. In a machine of the class described, the I in said pivoted tubularbearing or sleeve, substantially as described.

9. In a machine of the class described, the combination of a standard,A, a verticallyadjustable sleeve, 0, mounted thereon, a sawcarrying arm,G, mounted in a bearing secured to the sleeve 0, and a supporting-arm,M, mounted on a bearing secured to the sleeve 0 below the plane of thesaw-carrying arm G, and having devices for supporting the saw at itsedges, substantially as described.

10. In a machine of the class described, the combination of asupporting-standard, a vertically-adjustable sleeve, 0, mounted thereon,a saw-supporting arm. G, mounted in a bearing secured to said sleeve 0,and a vertically-adj ustable independent supporting-arm mounted in abearing secured to the adjustable sleeve 0, below the plane of thesaw-supporting arm, substantially as described.

11. In a machine of the class described, the combination of a standard,A, a sleeve, 0, mounted thereon, a bearing, E, pivotally connected tothe sleeve 0, a saw-supporting arm, G, rotatably mounted in the bearing,asupporting-arm, M, arranged below the arm G, and a bearing, L, for saidarm M, whereby the latter arm may be adjusted vertically andhorizontally independently of the saw-supporting arm, as set forth.

12. In a machine of the class described, the combination of a standard,A, an adjustable sleeve, 0, a tubular bearing, E, pivoted to the sleeve0, a saw-supporting arm journaled in the bearing E, a supporting-arm, M,mounted in a bearing adj ustably secured on the sleeve O, and avertically-adj ustable standard, N, carrying frictional rolls andmounted in the arm M, substantially as described.

13. The combination of a standard, a vertically-adj ustable sleevemounted thereon, a hollow bearing or sleeve pivotally and adj ustablyconnected to said sleeve 0, a saw-supporting crank-arm rotatably mountedin said hollow sleeve E, a vertically-adjustable supportingarm arrangedout of the plane of the crank arm, a bearing, L, for the saidsupportingarm, and an adjustable standard, N, carrying independentfriction-rolls, substantially as described.

14. The combination of a standard, a vertically-adjustable sleevemounted thereon, an adjustable bearing, E, pivotally secured to theadjustable sleeve 0, a crank-arm journaled in said bearing E, avertically and laterally adjustable supporting-arm arranged below theplane and out of, the vertical line of the crankarm, and a bearing, L,in which the supporting-arm is mounted, substantially as described.

15. The combination of a fixed standard, A,

v a sleeve, G, mounted thereon, crank-arm G, a

a reduced threaded end, a'collar, I, having a sleeve loosely mounted onsaid shaft, and bearing against the abutment thereof, a nut, i fittingthe threaded end of the shaft and bearing against the sleeve, and acollar, J, fitting a thread on the sleeve, substantially as described.

17. The combination of a standard, A, an

adjustable sleeve, 0, mounted thereon, an adjustable bearing, E, securedto the sleeve, a saw-supporting arm, G, journaled in the bearing, thesupporting-arm M, a vertically-adjustable shaft, N, mounted thereon, anda horizontal cross-bar rotatably mounted on the shaft and carryingindependent friction-rolls, substantially as described.

' 18. The combination of a fixed standard, A, a sleeve, 0, a crank-arm,G, journaled in a bearing secured to the sleeve, thesupportingarm M, ashaft, N, having a threaded portion and a band-wheel adj ustably mountedin said arm, a horizontally-rotatable bar, 0, loosely mounted on apintle of said adjustable shaft, and standards 0 carrying frictionalrolls and secured to said rotatable bar, sub-

